After taking several days personal leave early in the month, he resigned from Cabinet on 10 March 2014. The Premier said that Buswell had suffered a breakdown and had received hospital treatment in Perth and a clinic in Sydney.[1][2] He resigned from parliament on 3 September 2014,[3] citing his health as being incompatible with public life.[4]

In 1992, he became the director of Villa Carlotta Group, which provided bus tours in the Busselton region, and also became involved with the Cape Naturaliste Tourism Association. On 14 November 1992, he married Margaret Cummins, with whom he had two sons Jacob and Samuel.

He served as a councillor with the Shire of Busselton in 1995–1996, and again in 2001–2003, before becoming its Shire President at the 2003 local government elections. He stepped down to contest the state election for the Liberal Party in the seat of Vasse, which is centred on Busselton. Some controversy arose over his preselection as he was chosen over the sitting member, Bernie Masters, who blamed then-deputy leader Dan Sullivan for the decision, quit the party and ran for the seat as an independent.[5] However, Buswell won the contest by 209 votes.[6]

With the unexpected resignation of Deputy Opposition Leader Paul Omodei in October 2005, Buswell was elected by the party room to replace Omodei in the role, serving under Matt Birney. Omodei went on to successful challenge for the leadership in March 2006, with Buswell remaining as deputy. By August 2007, polling numbers had fallen below 14%, and media commentators speculated that Omodei would be replaced with Buswell within six months if he could not improve polling by the end of the year.[7][8][9] However, Buswell was being investigated by the Corruption and Crime Commission over allegations that he had met former Liberal powerbroker Noel Crichton-Browne, who was working as a lobbyist in conjunction with former premier Brian Burke, in a carpark to discuss the Canal Rocks development at Smiths Beach in Yallingup while he was still mayor of Busselton. On 9 October 2007, he was cleared by the CCC of any wrongdoing and pressure upon Omodei immediately increased.[10] Former party leader Colin Barnett, however, dismissed its significance, claiming Buswell would lead the Liberal Party at some future point but did not yet have the experience.[11]

On 28 November 2007, just after the 2007 federal election which saw a new Labor government under Kevin Rudd come into power, rumours of a push within the Liberal Party to install Buswell as state leader were reported in the media.[12] Omodei, however, promised to "land a good right hook" on anyone asking him to stand aside,[13] and asked for a "fair go" while announcing a swathe of new policies for the party.[14][15] On 23 December 2007, it was reported that Buswell was moving his family to Shenton Park in Perth's inner western suburbs due to lengthy periods of time away from his family.[16]

On 17 January 2008, Buswell made a challenge for the leadership of the state Liberal party and after a party room meeting won the position from Paul Omodei.[17]

In the following media conference, he refused to comment on allegations relating to a drunken night at parliament, where he snapped the back of a female Labor party staffer's bra-strap as a "party trick", and other "inappropriate and sexist behaviour".[18]

On 27 April 2008 further allegations were published, these included the sniffing of a chair of a female Liberal staffer as well as claims he crawled around on his hands and knees pretending to be the staffer's husband. Buswell first refused to deny the allegations,[18] and then subsequently admitted to the act.[19] The woman later revealed Buswell "was groaning and writhing in sexual pleasure".[20]

As well as these incidents, Buswell has been accused by retiring Liberal MLA for Carine, Katie Hodson-Thomas, of making sexist remarks to her.[21]

MLA for RoeGraham Jacobs called for a leadership spill motion, which took place on 5 May 2008,[22] but the motion failed and Buswell remained leader.[23]

Revelations also came out of Buswell "squirrel gripping" (grabbing the testicles of) Liberal MLA Murray Cowper in parliament. Cowper did not deny the incident, saying "As far as I'm concerned the matter's dead and it's time for everyone to move on, the media included."[24]

Buswell faced a fresh crisis when it was revealed in a Corruption and Crime Commission (CCC) report on 10 June 2008 that a motion moved in Parliament by his staunchest backer, Shadow Minister for Road Safety John McGrath, had been provided to him by lobbyists Brian Burke and Julian Grill. Burke had written the motion on behalf of a company that sold radar detectors. The CCC report said Mr McGrath's claim he was unaware of Burke's commercial interest in the issue strained credibility. Buswell backed McGrath by claiming that he had been cleared of misconduct while McGrath refused to stand down.[25]

Three days later, Buswell sacked the Shadow Police Minister Rob Johnson after Johnson said he could not serve in the Shadow Cabinet with McGrath as Shadow Minister for Road Safety.[26]

Buswell resigned as Liberal leader and leader of the opposition on 4 August 2008.[27] He was replaced by Colin Barnett.[28]

After resigning as leader, Buswell was granted a place on the Opposition front bench as Shadow Treasurer under new leader Colin Barnett. Following the state election in September 2008, where the incumbent Labor government was defeated and the National Party agreed to vote with the Liberal Party in the hung parliament, Buswell was named as Treasurer in Colin Barnett's new Cabinet.[29]

On 24 April 2010, Greens MP Adele Carles publicly stated that Buswell and herself had been engaged in an affair that lasted several months.[30] Buswell himself gave a public statement on 26 April confirming this and that he had used a ministerial car and a government credit card to pay for accommodation for himself and Carles. On 27 April, the premier demanded, and obtained, his resignation as a member of the ministry, although Buswell continued as the member for Vasse.[31]

Buswell was cleared of any misuse of public entitlements by Public Sector Commissioner Mal Wauchope's report which was tabled to state parliament by premier Colin Barnett on 23 June 2010.[32][33] The premier indicated that Buswell would not be considered for a cabinet position until the end of the year.[34][35] He was re-appointed to the ministry as Minister for Transport and Minister for Housing on 14 December 2010.[36]

During his political career, Buswell has been involved in a number of controversies.

In January 2008, allegations arose of an incident where Buswell snapped the elastic bra strap of a Labor staffer, which had occurred the previous year. Buswell later confirmed this and publicly apologised for the incident.[37]

In April 2008, it was alleged that Buswell had "sniffed the chair of a Liberal staffer, writhing in mock sexual pleasure", which he denied, and then subsequently admitted to, apologising once more.[37]

In August 2008, Liberal backbencher Murray Cowper mentioned that Buswell grabbed him in the crotch, but that it was an incident that had been resolved between them both.[37]

In October 2009, Buswell admitted to filing a false claim for a living away from home allowance, which he attributed to a clerical error. He later repaid the money. The following month, another travel allowance mistake was found.[37]

In April 2010 news of an extra-marital affair with Adele Carles was reported, and in the aftermath of the affair, Buswell admitted to misusing entitlements to facilitate the affair.[37] He and Carles were subsequently cleared by the Public Sector Commissioner of misusing entitlements.[34]

In December 2010, Buswell took up the position of Housing and Transport Minister; three months later it was revealed that he had committed nine speeding offences in the previous three years.[37]

In December 2012, Carles accused Buswell of having "dry humped" a businessman at a party in 2011.[37] Buswell launched a defamation case against her; this was subsequently settled out of court with Carles issuing written apologies to the parties involved.[38]

In March 2014, Buswell resigned from his position as Treasurer and Transport Minister due to a mental health breakdown.[39]

In May 2014 Buswell was convicted and fined for 11 motor vehicle offences whilst holding the cabinet position of Minister for Transport.[40] These fines related to careless driving, failing to stop at a crash and failing to report an accident on the night of 22 February 2014. From an independent eyewitness report to police on the night, it was indicated that Buswell was suffering from impaired coordination whilst driving and after returning to his Subiaco home.[41] The fines totalled $3,100 and his driver's licence was suspended for 12 months.[42]

Following his resignation as Transport Minister, accusations of plagiarism were made against Buswell for a report into light rail.[43] He was accused of plagiarising large sections of a report written during a taxpayer funded trip to Europe and Asia.